We’re sharing more data so you can improve your editing skills!
Our recent data download post gave you the opportunity to edit some wide-field data shot by Cory, and to see if multiple wide field short exposures will result in a better image. (Read the results and see other’s edits here)
Now we’re bringing you even more data, some longer exposures (180 seconds), with calibration files (should you wish to use them), to see what you can do with 15 minutes of exposure time on the Carina constellation and surrounding areas. This is also a great opportunity for folks in the north to work on some southern data!
The data is a wide-field view of Carina and surrounding constellations; Crux (the Southern Cross), Musca, Vela, Volance, Chamaeleon, and Centaurus. The two nebulae easily visible are Carina and the Running Chicken nebula.
Interesting space stuff includes the Pearl Cluster (NGC3766), Gabriela Mistral Nebula (NGC3324), Open Clusters NGC3114 and NGC3532, the Coalsack dark nebula (Southern Cross), the Dark Doodad (dark nebula), and the Southern Pleiades.
The data set
- Five 180 second exposures for each light frame, 15 minutes total. These files are in FITS format and require debayering. (Read more about debayering in DSS here)
- ISO: 800
- Camera: Canon 60Da
- Lens: Canon 24-70mm F2.8 LII. Shot at 24mm F4
- Mount: Celestron CG5
- Acquisition software: FITS in Nebulosity
- Calibration files: Master dark from 30 exposures, master bias from 100 exposures
Download the dataset and get cracking!
The light frames:
5 x 180-second light frames (118 MB)
Note: DeepSkyStacker (DSS) requires the light frames and the calibration files to be the same bit depth, so you should download the 16-bit calibration files only if you plan to use DSS!
New to FITS files and stacking?
If you’re unsure of how to work with FITS files, the freeware DeepSkyStacker can help. Now that you’re moving into the realm of deep space photography you’ll be required to use astro-specific editing software. Deep Sky Stacker is the 1st choice for many aspiring astrophotographers as it’s effective and free!